Enter the bolt load (N-m), the diameter (mm), and the nut factor (k-value) into the calculator to determine the Gasket Torque. 

Gasket Torque Formula

The following formula is used to calculate the Gasket Torque.

Tg =F*D*k / 1000

  • Where Tg is the Gasket Torque (N-m)
  • F is the bolt load (N-m) 
  • D is the diameter (mm) 
  • k is the nut factor (k-value) 

How to Calculate Gasket Torque?

The following example problems outline how to calculate the Gasket Torque.

Example Problem #1

  1. First, determine the bolt load (N-m). In this example, the bolt load (N-m) is given as 50 .
  2. Next, determine the diameter (mm). For this problem, the diameter (mm) is given as  20 .
  3. Next, determine the nut factor (k-value). In this case, the nut factor (k-value) is found to be 40.
  4. Finally, calculate the Gasket Torque using the formula above: 

Tg =F*D*k / 1000

Inserting the values from above and solving yields: 

Tg =50*20*40 / 1000 = 40 (N-m)


Example Problem #2

Using the same method as above, determine the variables required by the equation. For this example problem, these are provided as:

bolt load (N-m) = 60

diameter (mm) = 40

nut factor (k-value) = 80

Enter these given values yields: 

Tg =60*40*80 / 1000 = 192 (N-m)